Leon weather by month
Leon runs from about 25°C in November to 31°C in March, with September the wettest month at 625 mm.
warmest month
March
31°C
coolest month
November
25°C
wettest month
September
625 mm
worst air month
May
14 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 29°C | 1 mm | 350 h | 6 |
| February | 29°C | 6 mm | 334 h | 7 |
| March | 31°C | 6 mm | 367 h | 8 |
| April | 31°C | 79 mm | 355 h | 9 |
| May | 29°C | 175 mm | 351 h | 14 |
| June | 27°C | 622 mm | 206 h | 8 |
| July | 28°C | 290 mm | 299 h | 8 |
| August | 28°C | 253 mm | 327 h | 10 |
| September | 26°C | 625 mm | 250 h | 10 |
| October | 27°C | 421 mm | 289 h | 9 |
| November | 25°C | 555 mm | 243 h | 8 |
| December | 27°C | 64 mm | 298 h | 7 |
About 3,669 hours of sun a year. Roughly 208 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-27. Full method, licences and the list of sources we rejected are on the methodology page.